Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
E	47.818752	311.458225	501.041775	47.687502	47.950002000000005	0.2625000000000028	20250412_042835UTC_V00OS11.WAV
T	48.925	392.7062750000002	528.1227250000002	48.025	49.825	1.7999999999999972	20250412_042835UTC_V00OS11.WAV
T	55.5	379.1645000000002	541.6645000000002	55.0125	55.9875	0.9749999999999944	20250412_042835UTC_V00OS11.WAV